2:1 HDMI/DVI Switch with Equalization
Two inputs, one output HDMI/DVI links
Enables HDMI 1.2a-compliant receiver
Four TMDS channels per link
Supports 250 Mbps to 1.65 Gbps data rates
Supports 25 MHz to 165 MHz pixel clocks
Equalized inputs for operation with long HDMI cables
(20 meters at 1080p)
Fully buffered unidirectional inputs/outputs
Globally switchable 50 Ω on-chip terminations
Low added jitter
Single-supply operation (3.3 V)
Four auxiliary channels per link
Bidirectional unbuffered inputs/outputs
Flexible supply operation (3.3 V to 5 V)
HDCP standard compatible
Allows switching of DDC bus and two additional signals
Output disable feature
Reduced power dissipation
Output termination removal
Two AD8190s support HDMI/DVI dual-link
Standards compliant: HDMI receiver, HDCP, DVI
Serial (I2C slave) control interface
56-lead, 8 mm x 8 mm, LFCSP, Pb-free package
Multiple input displays
Advanced television (HDTV) sets
The AD8190 is an HDMI/DVI switch featuring equalized
TMDS inputs and pre-emphasized TMDS outputs, ideal for
systems with long cable runs. Outputs can be set to a high
impedance state to reduce the power dissipation and/or allow
the construction of larger arrays using the wire-OR technique.
The AD8190 is provided in a space saving, 56-lead, LFCSP,
surface-mount, Pb-free, plastic package and is specified to
operate over the −40°C to +85°C temperature range.
FUNCTIONAL BLOCK DIAGRAM
LOW SPEED UNBUFFERED
Figure 2. Typical AD8190 Application for HDTV Sets
1. Supports data rates up to 1.65 Gbps, enabling UXGA
(1600 × 1200) DVI resolutions and 1080p HDMI formats.
2. Input cable equalizer enables use of long cables at the
input (more than 20 meters of 24 AWG cable at 1080p).
3. Auxiliary switch allows routing of the DDC bus and two
additional single-ended signals for a single chip, fully
HDMI 1.2a receive-compliant solution.
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